Software development methodology is the progression toward generating new software solutions or modifying current software solutions. Software can be designed and developed in several ways. The methodology used to design and develop a software package can vary from a very simple and limited planning method to a very detailed, formal and structured method. There are several existing software development methodologies such as agile, scrum, waterfall and rapid application development. Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get an original essay Any software methodology should contain the following four activities: software specification, software design and implementation, software verification and validation, and software evolution. The software specification defines the main features of the software and the pressures surrounding them. Software design and implementation means that the software must be designed and programmed. Software verification and validation: The software must comply with its specifications and meet the customer's needs. Finally, software evolution involves modifying the software to meet changing customer and market requirements. In practice, these are sub-activities such as requirements validation, architectural design and unit testing. There are also support activities such as configuration and change management, quality assurance, project management, user experience. Along with other activities, the aim is to expand the above activities by introducing innovative techniques and tools, following best practices and standardizing methods. When we talk about a process, we are usually talking about the activities that take place within it. However, a process also includes the description of the process, which includes the products and consequences of an activity. For example, the consequence of architectural design can be a model for software architecture. Second, the racing roles of the people involved in the process. For example, the project manager, the programmer. Third, pre- and post-conditions are conditions that must be factual before and after an activity. For example, the prerequisite of architectural design is that the requirements have been approved by the client, while the prerequisite is that the diagrams describing the architecture have been reviewed. The software process is complex, it depends on decision making. There is no ideal method and most organizations have developed their own software. For example, an organization working on mission-critical systems has a very structured process, whereas with enterprise systems, whose requirements change rapidly, a less formal and flexible progression is likely to be more effective. First, agile methodology refers to a software development group. models based on incremental and iterative methodology, in which the increments are small and stereotypically, new versions of the system are trained and made available to customers every few weeks. They include customers in the development process to suggest changes to requirements. They minimize documentation by using informal communications rather than formal meetings with written documents. They are best suited for applications where requirements change rapidly as development progresses...